Impact water-motor.



A R. MGF. DOBLE. IMliPACT WATER MOTOR. APPLIGATION rum) 00124, 1906*;l

v wmmnteamne. 1909 i UNITED STATES PATENT cerros.

ROBERT MCFARLANI) DOBLE, OF FRANCISCO, CALIFORNIA, ASSIGNOR-TO ANER DOBLE i COMPANY, OFSAN FRANCISCO, (JALIFORNIA. i

IIVIPAC'I WATER-MOTOR.

f No. 924,150. specification of Lettersratent. Patented June s, 1909'.

Application led October` 4, 190,5. Serial No. 281,288.

To allwhomt't may. concern: Be 1t known that I, ROBERT MCFARLAND DOBLE, a,citiz'en of the United States, residing at San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Impact Water-Motors, of which the following is a s ecication.

In that c ass of impact water motors in Iwhich regulation is effected by deflecting the deflect a part of the jet. The former mode .'20 of the latter, or that which the jet is thrown from the nozzle form-v y impact motor, of a deiiector and a movable .involves expensive construction; the latter is objectionable from thevfact that heretoforethe deflectlng plate has always been carried u Ward from below the jet so that the force strikes the j ct', tends to lift the plate and re- .sults in`thus varying the force of the jet.

The plate thus hinged below the jet also tends to fall away from the jet if-there is any 5 looseness in the'connectio'ns with .the governor, and a further objection is the ra id wear of the edge of the plate, requiring requent renewals. I overcome .these objectlons b y so supporting the deliector that it 0 will swing or move into theA jelt from above, 'as fully set forth hereinafter, and as sliownin the accompanying drawing which shows -a side elevation in part section of sufficient of :an impact'motor to illustrate my' invention, The wheel A is .of ordinary construction and provided with the usual blades a against ing part of the casing B. The jet is secontrolled as to compensate for major variations 40, by a suitable device, as a valve b.- To compensate for theminor variations inthe load,

the jet is deflectedl to a' greater or less extentv from the buckets `a'by a delector' C. As

shown, the deflecto'r is a plate inclined in res 45. spect to the jet, and so arranged as to approach the jet from above, its outer edgethat farthest from the nozzle-meeting` the Jet. This may be effected in dii'erent ways,4

Vcording to the load.

lfrom the wheel blades.

art thereof which but as shown the plate is secured toa pivoted support, as a yoke d, hung byv pivots e to the casing` 'so as to swing to and from the jet from above, and this support is connected by any suitable connections withia governor G, which controls the position of the plate 'ac- For instance, when it is' required to wholly or partially deflecyt the jet from vthe wheel,I the support is lowered by the act of the governor and theplate is depressed,

its extreme end passing-down into the top* of the 1ct and deleeting part or all of the latter rangement, .whatever may bethe back lash or slack motion, the deflector will not drop into the jet. On .the contrary it will be held by the force of the water'in its highest position, while any force carrying it farther into the jet will change the adjustment without lost motion. It will further be seen that as the inner edge oi the plate lis never resented to the jet there is no tendency on t e part of the jet to carry the plate farther into the jet, and further there is no wear on the edge of the plate so that the latter d oes net have tobe constantly renewed.

-Itwill of course be understood that the de lector plate may be shaped in different Ways,

Aand also supported in diil'erent ways so as to present the outer edge first to thejet'.

. Without limitingr myself to the construcfrom the jet from above the latter, substan-v tially as s et forth. l

2. The combination. with the nozzle of an support therefor arranged to sup'portthe deilector above the jet and to carry it to and from the latter, substantially as s et forth.

.Intestimony whereof `I havesigned my name t'o this specification in the presence'of two subscribing witnesses.A

I ROBERT AlllCIfARLAh'D DOBLE. Witnesses: P. EcHEGURnN- y J. C. SoLoRzANo; a 

